Improvement in cultivators



wand employ my invention, I will now describe UNITED STATES PATENTOEEICE.

A. L. CHUBB, OF GRAND RAPIDS, MICHIGAN.

IMPROVEMENT lN CULTIVATORS.

' Specification forming part of Letters Patent No. 98,560, dated January4, 1870.

T0 all whom it may concern:

Be it known that I, A. L. CHUBE, of Grand Rapids, in the county of Kentand State of Michigan, have invented certain new and useful Improvementsin Gultivators; and I do hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specication, in which- Figure 1 represents aside elevation of my cultivator, and Fig. 2 a plan view of the same.

The nature of this invention consists in casting the side pieces withreceptacles for receiving the cross-beams of the cultivator, and incombination with such devices, as will be hereinafter set forth.

To enable others skilled in the art to make its construction andoperation.

The frame of my cultivator consists of the four beams A and the sidebars, B B. The said end or side bars are cast in one piece with thewheel-like devices C C, and said pieces or bars are furnished withreceptacles on their inner sides large enough to receive the entire endof each of the beams A A. The ends of said beams are secured in place byscrew-bolts. This mode of fastening the beams adds greatly to theirstrength and solidity.

To the beams AA are attached the common shovels used in cultivators,each shovel having a lateral projection of suflicient length to reachthe width of two of the beams A A, to which said projections will befastened by screw-bolts.

D D designate the wheels, which revolve on axles, the inner ends ofwhich are secured to the levers E E. (See Fig. 1.) 4The levers' E E areconfined to bars B B by bolts, which act as fulcra upon which saidlevers can play backi ward or forward. l

On the outer side4 of each of the levers are the projections s s, withholes through them to receive the rods g g, the said rods being made topass inward through openings in le-v vers E E, and then enter any one ofthe several perforations in the wheel-like devices C C. The upper endsof said rods are bent a little outward, and rest on rubber springs t t,placed on the levers E E.

The operation of my machine is as follows:

When it is desired to raise or lower the wheels D D, which are pivotedto the levers E E, the upper ends of rods y g will be pressed againstthe springs t t, and the hooks at their lower ends disengaged from theperforations on the wheel-like devices C C, and the long arms of leversE E pushed forward or backward, as the case may require, and the hookssuffered to enter the appropriate perforations on the wheel-like devicesC C.

It will be observed that when the levers E E are nearly in a verticalposition the shovels will be elevated as far as is necessary above thesurface of the earth, and the above adjustment of levers E E will bebetween the top holes in the wheel-like devices C C and the lower holesin said devices.

Vhat I claim as new, and desire to secure by Letters Patent, is

The side bars, B B, when cast with recesses on their inner sides toreceive the cross bars or beams A A, substantially in the mannerspecified.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

A. L. CHUBB;

Witnesses:

T. H. ALExANDER, J. W.`MIsrEE.

